这是因为中纬度和高纬度地区的林木线受到积雪存留时间和厚度的强烈影响。
This is because middle- and upper- latitude timberlines are strongly influenced by the duration and depth of the snow cover.
第三个来源，特别是在中纬度和高纬度地区，森林和土壤中因气候变暖而加剧的有机物腐烂，现在被认为具有潜在的重大意义。
A third sources, the warming-enhanced decay of organic matter in forests and soils, especially in the middle and higher latitudes, is now being recognized as potentially significant.
日本与美国一样，位于北半球中纬度。
Japan lies in the mid latitudes of the Northern Hemisphere, as does the United States.
南北半球中纬度的西风普遍增强。
Mid-latitude westerly winds have generally increased in both hemispheres.
高纬度比中纬度升温更快，花粉季也成比例增长。
Upper latitudes are warming faster than mid-latitudes, and the pollen season is lengthening in proportion.
现今中纬度正在变暖，覆雪几乎完全消失。
Today the midlatitudes are warming up and the snow cover has mostly disappeared.
阳曲位于北半球中纬度暖温带，属大陆性气候。
Yangqu located in warm temperate latitudes in the northern hemisphere, is a continental climate.
在中纬度地区大力提倡植树造林以减缓气候变化。
Afforestation has been promoted heavily in mid-latitudes as a means of mitigating climate change.
这幅图片显示了火星北半球中纬度地区的一个面向西侧的陨石坑。
This image shows the west-facing side of an impact crater in the mid-latitudes of Mars' northern hemisphere.
中纬度海洋对大气环流的影响有多大，目前还很不清楚。
It is at present far from clear how much the mid-latitude ocean affects the atmospheric circulation.
在火星南半球的中纬度地区，似乎有水在火山口的边缘流动过。
In the middle latitudes of the planet's southern hemisphere, water appears to flow off the edges of craters.
毫无疑问，这是澳大利亚由高南纬区向北部中纬区运移的结果。
This was undoubtedly due to the northward movement of the Australian region from high southern to a mid latitude position.
在一个活动周期开始的时候，就可以找到高速气流，像中纬度地区的太阳黑子。
At the beginning of a cycle the jet stream is found, like sunspots, in mid-latitudes.
在火星上被称为德特罗尼鲁斯·门萨的中纬度地区，这些冰河绵延了数百公里。
The ice extends for hundreds of miles, or kilometers, in a mid-latitude region of Mars called Deuteronilus Mensae.
天王星有27个已知的卫星，它们都是围绕天王星的中纬线运行的。
Uranus has 27 known moons, all of them revolving around this planet's equator.
大多数的热带、亚热带地区甚至是更低的中纬度地区将由于太热而变得无法居住。
Most of the tropics, sub-tropics and even lower mid-latitudes are too hot to be inhabitable.
然而，深色条纹发生于南部中纬度地区，对二氧化碳结冰来说温度太高了。
However, the areas where the dark streaks occur, located in the southern midlatitudes, are too warm for carbon dioxide frost.
AIT能模拟引纬过程，并且可以测试在引纬过程中纬纱的速度和速度的变化。
The AIT provides a simulation of the welt insertion and measures the speed and speed variation of the weft yarn as it is inserted.
这样的周期活动以太阳黑子在其中纬度出现开始并随着黑子移动到赤道附近而终结。
Such cycles begin with spots appearing in mid-solar latitudes and end with them near the equator.
研究者们现在计划开始关注火星中纬度上的其他区域以发现这些湖泊的最大覆盖区域。
Researchers now plan to focus on other areas along the planet's equator to discover how widespread an area these lakes covered.
具体而言，本文主要进行了三个方面的工作：第一部分涉及中纬电离层E层理论模式。
The major work in this paper has been carried out in the following three aspects: The first part deals with theoretic model of the mid-latitude ionospheric E layer.
加洛维(Galloway)(10)发现，长期气候变化制约了中纬度地区人口规模。
Galloway (10) found that long-term climate change controlled population size in middle-latitude areas.
用此算法同时研究了典型中纬度电离层的加热特性并与以往对高纬度的结果进行了比较。
This algorithm is also applied to study the heated properties of the ionosphere at typical middle latitudes and the results are compared with that by previous authors for high latitudes.
除了气温变化和地表的热传递，他们还观察到大规模的降水，特别是在北半球的中纬度地区。
In addition to changes in temperatures and surface heat fluxes, they also observed changes in large-scale precipitation, particularly at the mid-latitudes in the Northern Hemisphere.
然而历史上的某些天气形态记录的确表明，北半球中纬度地区与印度夏季风间存在间歇性关联。
Historical weather patterns do, however, suggest linkages across the Northern Hemisphere's middle latitudes, intermittently coupled in turn to India's summer monsoon cycles.
然而历史上的某些天气形态记录的确表明，北半球中纬度地区与印度夏季风间存在间歇性关联。
Historical weather patterns do, however, suggest linkages across the Northern Hemisphere's middle latitudes, intermittently coupled in turn to India's summer monsoon cycles.
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